Gin brush



oct. 5, 194s. E. C, MAY 2,450,679

I GIN BRUSH Filed May 3. 1946 Patented Oct. 5, 1948 GIN BRUSH Earl C. May, Dallas, Tex. Application May 3, 1946, Serial No.7666,874

I I (c1. isi-60) 2 Claims.

This invention relates to cotton ginning and cleaning machinery and it has particular reference to new and useful improvements in rotary brushes for such machinery.

The principal object of the invention is to simplify the old and establishedmethod of installing brush sticks in the heads of diofting and other types of rotary brush drums, as well as to materially reduce the time consumed in fab-ricating these elements which has a great deal to do with reduction of costs of manufacturing, assembling, and the replacement and repair of worn brush sticks.

Another object of the invention is to -substitute for the expensive and time consuming practice of nailing brush sticks directly into recesses in the spaced, laminated heads of a drum, a less expensive and more facile method of installing the brush sticks which consists in first mounting in the drum head recesses a plurality of channels into which the conventional brush sticks are slid longitudinally and afterwards secured against axial displacement. In so mounting the brush sticks, they may be easily and quickly removed, when worn or impaired and replaced without the necessity lof returning the brush drum to the factory for this purpose which is an annoying and expensive procedure in view of the shutdown time which is frequently imposed on the gin owner.

With the foregoing and other objects in view, the invention has particular reference to certain features of accomplishment, to become manifest as the description proceeds, taken in 4connection with the accompanying drawings, wherein:

Figure 1 is a perspective of a rotary gin brush constructed according to the present invention, with portions broken away.

Figure 2 is a fragmentary end elevational view.

Figure 3 is' a fragmentary perspective view of one of the brush stick retaining channels, and

Figure 4 is a fragmentary view in vertical section, showing the relationship of a brush stick and retain-ing channel and the manner in which the latter is secured to a head of the brush drum.

It has long been the practice of gin equipment manufacturers to fabricate a rotary gin brush by forming and rabbeting the heads of the drum to dene circumferentially spaced recesses in which are disposed the brush sticks. The time consuming feature of this conventional manufac-l turing method resides in the nailing of the brush sticks to the heads. Many nails are required to secure the complement of sticks and expertness is necessary to insure against splitting or otherwise impairing the sticks and it is essential that the nails beso disposed that they will not protrude beyond the common surface'of the drum.

In addition to the purpose of the invention to reduce manufacturing costs, it will become apparent presently that it is the intent thereof to render' it unnecessary for a ginner to return a gin brush to a manufacturer for the purpose of replacing worn brushes or impaired brush sticks. Continuing with a more detailed description of the drawings, reference numeral III denotes the heads of a rotary gin brush drum of which there may be three or more. The present invention does not seek to alter the conventional construction of these heads which consists in sawing and laminating the circular sections and afterwards cutting recesses II in the heads at circumferentially spaced points about their peripheries. A shaft I2 is passed through the centers of the heads whichv serves as the axis for the drum.

Disposed in parallelism about the head assembly is a multiplicity of channel members I3, of sheet metal, which conform to and lie in the recesses I I of the heads, thus forming a cylindrical body. The vchannel members I3 are secured to each section of each head by a wood screw I4 (Fig. 4).

The channel members I3 are each provided with longitudinal, inwardly turned and confronting flanges I5 to form an elongated housing. A brush stick I6, having tufts of bristles II at spaced intervals thereon, is inserted into the open end of each of the housings formed by the channel niembers I3 and becomes co-extensive therewith. These brush sticks are of conventional construction, their tufts I'I being anchored in recesses in the sticks by means of staples I8.

It will be observed, especially in Figures 3 and 4 that the base of each of the brush stick retaining channels or housings I`l3 protrudes beyond the end of the channel to an extent equal to the depth ofthe channel. When the brush stick IB has been installed in the channel, the extended portion or tongue I9 of the channel is turned upwardly against the end of the brush stick, to lie flush with the outer face of the end head I0 of the brush drum in order prevents longitudinal movement of the brush stick.

that it will oier no j obstruction to the attachment of end 'mounting It is apparent from the foregoing that not only are the brush sticks rendered capable of being readily and quickly removed from their positions in their respective retaining channels but as a group, the combined lsticks and channels add strength to the assembly as a whole, lending materially to the balance and operating eciency of the gin brush.

Manifestly, the eonstruction-as-shown land described is -'capable of some modification andis'uch modiiications as may be construed to fall within the scope and meaning of the appended claims is also considered to be Within the spirit and intent of the invention.

What is claimed is:

1. A rotary gin brush comprising a plurality of heads, each having a multiplicity Tof circumferentially spaced recesses, longitudinal channels lying in the recesses of said heads and'secued thereto, maintaining said heads in spaced parallelism, brush sticks disposed 'co-axially Within said channels, `the latter having confronting flanges overlying said brush sticks and ldening an velongated housing therefor 'of `substantially rectangular cross "section, an integral tongue formed on the ends of each channeland turned upwardly to lie ilush againstthe endsof the brush against the ends of said brush stick to hold the latter in co-axial relationship therewith.

EARL C. MAY.

REFERENCES CITED Nun'iber 23937-16 862,663 968,820 'esigere 1,018,327 

